Starting means for explosive-engines.



S. E. PQULE.

STARTING MEANS FOR EXPLOSIVE ENGJNES.

' (Application filed. Jan. 25, 1962.

(no Model.)

Warm oinzsr,

. "WITNES S ES: /NVEN7'0fi BY raw I a E a,

1 Arm/MEN.

THE uonms PEYERS ca. PNOTO-LlTHOq WASHINUTON, Ii. i:,.

UNITED STATES PATENT OFFICE.

SAMUEL E. POOLE, OF RANDOLPH, OHIO.

STARTING MEANS FOR EXPLOSIVE-ENGINES.

SPECIFICATION forming part of Letters latent No. 703,463, dated. July 1,1902. Application filed January 25, 1902. Seriallio. 91,211. (No model.)

T0 on whom, it DMZ/y concern:

Be it known that I, SAMUEL E.POOLE, a citizen of the United States,residing at Randolph', in thecou nty of Portage and State of Ohio, haveinvented certain new and useful- Improvements in Starting Means; forExplo sive-Engines; and I doz hereby declare the following to be afull,clear, and exact description of the invention, such as will enableothers skilled in the art to'which it appertains to make and use thesame, reference being had to the accompanying drawing, and to thefigures of reference marked thereon, which from part of thisspecification.

My invention relates to gas or gasolene engines, and is designed toobviate the difficulty heretofore experienced in starting suc'h engines.It-embo'diesftheidea of heating the cylinder before startingthc engine,so that generation of the gasis assisted and condom sation thereofprevented; also, the operation of the sparkersmaterially improved. Suchengines commonly have a cylinder and a.

jacket surrounding the same, through which cooling-water circulates toabsorb the heat caused by the explosions. In cold weather to avoidfreezing of the water and burstingthe engine is cold, a very strongelectric current is required to produce the necessary ignition, and thenwhen the engine becomes warm such current is too strong, resulting inburning out the electrodes or platinum points.

These defects impair the utility of such engines, especially in coldweather or climates, and are annoying and expensive and also attendedwith considerable danger.

It is the object of my invention to remedy these defects by apreliminary heating of the cylinder and adjacents parts by means ofsteam introduced into the jacket-space ordinarily occupied by thecooling-water.

In the drawing the figureris a sectional view of a constructionembodying my invention.

The cylinder is indicated at- 6, having a jacket 7 with a space between(indicated at 8) tapped by inlet and outlet water-pipes 9 and 10,through which water for cooling the cylinder circulates. In additiontothese parts I provide a steam-pipe 11, which also communicates withthe space 8. The pipe is provided with a stop-cock 12. Steam may besupplied from any boiler or steam-generator.

In operation, the jacket being empty and the partscold, steam isadmitted within the jacket until the cylinder and the adjacent parts aresufficientlywarm. Then the engine may be started with one or two turnsof the fiy-wheel, and evaporation or generation of the gasolene willbemateriallyassisted, as well as the operation of the sparking devices.When the engine reachessufticient speed to Warm itself, the steam isturned ofi and the cooling-water allowed to circulate in the jacket, asusual.

What I claim is- In a gas or gasolene engine,in combination,

a cylinder and its jacket, a pipe for intro ducing a cooling medium intothe jackeiyand a pipe for introducing a heating medium into the jacket.

In testimony whereof I affixmy signature in presence of two witnesses. q

SAMUEL E. POOLE.

Witnesses:

SIMO PERKINS, MARY A. PERKINS.

